PHOTOMETRY AND SPECTROSCOPY IN THE OPEN CLUSTER ALPHA-PERSEI .2.

Results from a combination of new spectroscopic and photometric observ ations in the lower main sequence and pre-main sequence of the open cl uster alpha Persei are presented. New echelle spectroscopy has provide d radial and rotational velocity information for thirteen candidate me mbers, three of which are nonmembers based on radial velocity, absence of a Li 6707 angstrom feature, and absence of Halpha emission. A set of revised rotational velocity estimates for several slowly rotating c andidates identified earlier is given, yielding rotational velocities as low as 7 km/s for two apparent cluster members. VI photometry for s everal pre-main-sequence members is given; the new (V,V-I(K)) photomet ry yields a more clearly defined pre-main sequence. A list of approxim ately 30 new faint candidate members based on the (V, V-I(K)), CCD pho tometry is presented in an effort to identify additional cluster membe rs at very low masses. Low-dispersion spectra obtained for several of these candidates provide in some cases supporting evidence for cluster membership. The single brown dwarf candidate in this cluster is for t he first time placed in a color-magnitude diagram with other cluster m embers, providing a better means for establishing its true status. Sta rs from among the list of new photometric candidates may provide the m eans for establishing a sequence of cluster members down to very faint magnitudes (V approximately 21) and consequently very low masses. New coordinate determinations for previous candidate members and finding charts for the new photometric candidates are provided in Appendices.